134 



REVIEW OF AMERICAN BIRDS. 



[part I. 



As stated, this species is very similar above to castaneiis ; the 

 black bars ou the tail are rather more continuous. The under parts, 

 however, are white, except flanks and crissum — not chestnut ; the 

 bars much more decided, and extending forward over the jugulura, 

 throat, and chin, instead of being unmarked. The resemblance to 

 T. nigricapillus, Sclater, from Ecuador, is still closer; this, how- 

 ever, has the throat pure white, instead of being barred with black. 



PHEUGOPEDIUS, Cabams. 

 Pheugopedius, Cab. Mus. Hein. 1850, 79. (Type P. r/enibarbis^^mclanos.') 



General characters of Thryothorus. The bill, in typical species, 

 much thicker and stouter, as in Cyphorinus ; height about one-third 

 length above ; culmen nearly straight to the rather abrupt extremity. 

 Owing to the greater breadth of the nasal membrane, the overhang- 

 ing roof of the nostrils becomes more valvular ; and, in the dried 

 specimen at least, is very apt to close the nostril, or to leave a very 

 narrow crescentic slit, thus distinguishing the genus very readily 

 from Thryophilus. The tail appears more graduated, and exhibits 

 a tendency towards being slightly decurved or arched above and not 

 plane. 



I have taken the characters above given partly from P. melanos, 

 the type, and partly from P. fasciato-ventris. The transition, how- 

 ever, from Thryothorus to Pheugopedius is quite gradual, through 

 such species as rutUus and maculipectus. T. felix is more like 

 a Thryothorus in the bill, and nearest Pheugopedius in the tail. A 

 synopsis of the principal species will be found under Thryothorus. 



Pheugopedius fasciato-ventris. 



? Thryothorus fasciato-ventris, Lafres. Rev. Zool. 1845,337 (Bogota). — 

 Cyphorinus fasciato-ventris, Lawrence, Ann. N. Y. Lye. VII, ISGl, 

 320, no. 186 (Panama). 



Cyphorinus all>i(jularis, Sclater, P. Z. S. 1855, 76, pi. 88 (Panama). 



Iliih. Bogota to Isthmus of Panama. 



(89, % .) Above rather bright reddish-brown (e.specially on the lower 

 back) ; the exposed surface of wings, including greater coverts, and upper 



